// Created 2018-2017 by D. Pantazis
// Used thread library created by Ryan A. Colyer.
// http://www.thingiverse.com/thing:1686322
// This work is released with CC0 into the public domain.
// https://creativecommons.org/publicdomain/zero/1.0/
//
// v1.0
//
$fn=196;
nbush=12;
rbush=44;
use <threads.scad>

// translate([-15,-15,0])import("NutShell.stl", convexity=3);

// Create a thread
diameter=14.0; // OD
pitch=1.5;  // pitch
tol=0.85; // thread tolerance
Ht=12;

// part OD
OD=22;
H=10.0;

// base OD
ODB=55;
module RHole(height=Ht) {
 ScrewHole(diameter, height, position=[0,0,0], rotation=[0,0,0], pitch=pitch, tolerance=tol)
 children();
}
module LHole(height, position=[0,0,0], rotation=[0,0,0], tolerance=tol) {
  mirror([0,0,0])ScrewHole(diameter, height, position=position, rotation=rotation, pitch=pitch, tolerance=tolerance)
    children();
}

module ThreadChamferID() {
        cylinder(h = 1.250*pitch, r1 = (diameter+1.0*pitch)/2, r2 = (diameter-1*pitch)/2, center = false);
}

module NutChamfer(){
difference(){
    cylinder(h = pitch, r1 = (OD+0.50*pitch)/2, r2 = (OD+0.5*pitch)/2, center = false);
    cylinder(h = pitch, r1 = (OD-2*pitch)/2, r2 = (OD+0.125*pitch)/2, center = false);
}
}

difference() {
//puck
union() {
  translate([0,0,1])  cylinder(h=20, r=ODB, center=false);
  translate([0,0,0])  cylinder(h=1, r1=ODB-1, r2=ODB, center=false);
  translate([0,0,21]) cylinder(h=1, r1=ODB, r2=ODB-1, center=false);
}
//Center
translate([0,0,-0]) cylinder(h=12, r=59/2, center=false);
translate([0,0,-0.1]) cylinder(h=1, r1=1+(59/2), r2=(59/2), center=false);

// pivot pins
 for (a=[0:1]) rotate([0,0,(a*180)]) translate([59/2,0,-1]) cylinder(h=13, r=7.0, center=false);
 for (a=[0:1]) rotate([0,0,(a*180)]) translate([59/2,0,-0.001])cylinder(h=1, r1=7+1, r2=7, center = false);
// bushing holes
 for (b=[1:nbush/2]) rotate([0,0,(b*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-0.25*pitch]) ThreadChamferID();
 for (c=[1:nbush/2]) rotate([0,0,(c*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-0.001])  RHole(Ht);
 for (f=[1:nbush/2]) rotate([0,0,(f*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-0.001]) cylinder (h=25, r=(diameter-pitch-0.5)/2, center=false);
 for (d=[1:nbush/2]) rotate([0,0,180+(d*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-1])ThreadChamferID();
 for (e=[1:nbush/2]) rotate([0,0,180+(e*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-0.001]) RHole(Ht);
  for (e=[1:nbush/2]) rotate([0,0,180+(e*(360/(nbush)))+(-180/(nbush))]) translate([rbush,0,-0.001]) cylinder (h=25, r=(diameter-pitch-0.5)/2, center=false);
  cylinder(h=25, r=17/2, center=false);
}